How to achieve Django nested expression, or evalute expression inside expression {{ {{ expr }} }}?

Question

In python i am passing below context in django template:

{'expr': 'next_expr', 'next_expr': 'value'}

In template, i am trying to print 'value':

{{ {{ expr }} }}

I know above expression wont work but i want to achieve something like this:

{{ {{ expr }} }} ---> {{ next_expr }} ---> 'value'

Is there any method in django inbuilt by which i get 'value'?

Thanks!

score 1 · Answer 1 · edited May 23 '17 at 11:56

1

If I understood correctly and the Python object is passed as tmp variable:

tmp = {'expr': 'next_expr', 'next_expr': 'value'}

you could do that in Jinja2:

{{tmp[tmp['expr']]}}

In Django all I could find is something like this, but I don't think that this is what you want

{% for k, v in tmp.items %} 
  {{k}} - {{v}} |
{% endfor %}

edited May 23 '17 at 11:56

Community

answered Oct 16 '12 at 16:05

Lipis

I get TemplateSyntaxError: Could not parse the remainder: '[tmp['expr']]' from 'tmp[tmp['expr']]' when I wrote your exact expression in template. – Love Sharma Oct 16 '12 at 16:11
1

@LoveSharma Hmm... works nicely in Jinja2.. It should be the same.. http://stackoverflow.com/a/1724201/8418 :( – Lipis Oct 16 '12 at 18:44
raising answer... but not exact answer which i am looking and may be its not possible in django. So i implemented custom tag and work fine. Thanks for your effort. :) – Love Sharma Oct 17 '12 at 20:48

1 Answers1